User blog comment:Youtubegirl6114/Ask Me Anything!/@comment-33815811-20180123004032/@comment-30435697-20180123123136

Go to Decca beach, and surf to Route 17. At the of Route 17 there is Cressnt Town. Inside of the tavern in Cressnt Town, pull the lever on the red juice keg, and it will give you an elevator to team Eclipse’s base. Once you have stormed the base, Cypress will go to the end of Route 18, and inside the cave at the end is Hoopa’s tomb. Once you the defeat Cypress, he will summon Hoopa, and you get to battle it. If you have a Pokémon with false swipe, get it down to to 1 hp, and then try to catch it. If you don’t have false swipe, just get it to as low as you can.